Vehicle-wheel.



c. W. GRAM'ER.

VEHICLE WHEEZI..

APPLIOATION FILED SEITRZI, 1911.

' Patented Aug". 26, 1913.

2 SHEETS-SHBBT 1.

HBBTS-S HEBT 2.

Patented Aug. 26, 1913.

m QN QN QN ED STATES PATENT oEEioE. i

oHAELEsw. GRAMEE, or scRAN'roN, PENNSYLVANIA.

, VEHICLE-WHEEL.

Specification of Letters Patent.

Application mea september- '21, 1911. senai No. 656,527.

T o all t may concern, Be 1t known that I, CHARLES W. CRAMER,

L of Scranton, inthe county of Lackawanna and State of Pennsylvania, have invented rtain new and useful Improvements in Vehicle-Vheels, whereof the following is a specification, referencebeing .had to the accompanying drawings.

My invention relates especially to the construction of the rim of the vehicle wheel,

whereby a resilient tire maybe quickl attached to or detached from jelly of the wheel.

An' object of the invention is to provide a' demountable rim which may be lilade in sections so that the same may bev readily attached to the tire, which sections arevso constructed as to be locked togetherby Vthe inlating of the tire.A

A. further object of 'the invention to4 provide a construction of'felly whereby the demountable` rim may -be quickly placed thereon, which rim is so constructed as to give a rigid support to the tire and to prevent the accumulating of dust and dirt underneath the rim.

These and other objects will in part be obvious, and will in part be hereinafter fio ' locked. Fig. VI is an enlarged detail view in plan showing the interlocking parts of the rim.

I have shown my invention as applied to the ordinary wheel which includes a telly 1, mounted on spokes 2. The telly 1, has its outer suface 3, inclined to the planeof the wheel.. so that a demountable rimmay be "readily slid thereon. vSaid felly is formed with aretaining flange 4, against which the vrim is seated. IIthe surface 3, inclines from the retaining flange in a transverse direction toward the front of the wheel. so that the demountable rim may be readily slid on to the telly and placed against the retaining flange 4:, The demountable rim 5,

vcarries -a resilient tire 6, which is shown the rim. an the herein as a pneulnatic tire. The demountablerim 5 as clearly shown in Figs. II, to VI, inclusive, 1s tormed with a body portion two sections 8, and 9. These sections have tnelr adjacent faces parallel, and are adapted to abut or have ltheir inner edgesface each other, though slightly spaced,vwhen thetire is inflated thereon. The section 8, 1s formed with a flange 10, and the section 9, is formed with a ange l1, between which the tire 6, is held in the well known'manner.

The sect1on 8, is provided with a plurality of recesses 12. --The wall 13, of the recess is formed with a projection 14, and

lPatented Aug. 26,1913.

7, which -is 'divided circumferentially intov the inner wall 15, of the ,projection 1s in-v A clined lfrom the base of the ward Athe outer face 'of the rlm section, The rim section 9, is formed with a plurality of laterally projectinglugs 16, and each lug is formed with a projecting part 17, which extends substantially parproj ection toallel with the inner-face of the rim section.y

The'inner Wall 18, of the projecting portion 17 is inclined romj the base of the projecting portion toward the outer face of the rim section.` The recess 12, has an entrance neck 19, which is adapted to receivel the lug [16. This neck is made sutiiciently wide to allow the lug to be inserted in the recess, after which by a relative rotation ot the rim sectionsthe projecting lug portion 17 will seat behind the portion 14, on the wall of the recess 12. The space between fthe projecting portion 14 of the rimand the inner face, or bottom of the recess, is greater than the width of the projecting part 17 which allows the projecting part 17 to be moved behind the projecting part lll, notwithstanding `the adjacent faces 'of said parts 14 and 17 are inclined. That is to say, when the adjacent edges of the rim sections are in contact, the projecting part 17 is slipping by the part 14, but when said edges of the rim sections are separated bythe intlating of the tire, thenthe inclined Afaces of the parts 14 and 17 will interlock and prevent the lug or projection 17 from being 'withdrawn from its seat behind the projecting part 14. The inclined wall 15, will be brought into engagement with the inl clined wall 18, when the t-ire is inflated and pressure is ibrought to bear on the rimsections which tend to separate one from the other. These inclined walls will therefore," form an interlock and prevent a rotation of one section relative Lto the other, which will tend to draw the said sections together, the Jections being held spaced by the inflated ire.

By my construction of interlocking lug and recess, I am able without any other means, to join the tivo sections of the rim and hold the same interloclred or assembled merely by the iiitlating of the tire. I have therefore, provided a demoiintable rim which is very simple in construction, which may be readily attachedto the tire after which the tire may be inflated and the parts firmly held assembled until the riin is placed on the felly of the wheel.

In order to assist in turning one of the sections relative to the other, I may form the section S, with spaced apertures 20,and the section 9, with spaced apertures 21,

which. are adapted to receive suitable tools to aid in holding one section while the other is being turned relative thereto.

The deinountable rim with the tire attached thereto may be readily slipped on to the tapered face of the felly 3, and the rim seated against the flange et, carried by the' felly. In order to hold the riin firmly seated against said flange, I have provided a plurality of locking devices 22. Each device I consists of a bolt 23, which is inserted thro-ugh a suitable opening in the felly, and said bolt may be held in place by a head 2&1.

*l Said bolt has threaded thereon, a locking retaining flange 4.

dog 25. The rim 7, is formed with an opening 26. This locking dog 25, is adapted to engage the wall of the recess 26, and by turning the screw, said dog will iirmly press the rim against the retaining iiange 4. As a further means for locking the rim on the felly, I have provided a nut 27, which is threaded on thebolt 23. vThis nut is formed with a circular base adapted to extend through a second recess 2S, in :the rim section 8, and bear against the inner wall thereof, and thus force ,the rim against the The locking .bolt is mounted in a tapered recess so that when the nut is loosened and the dog released, said bolt may be swung, about its head as an aXis to withdraw the locking dog -and the nut beneath the tapered face 3,V of the felly, so that said demountable'rim Amay, be readily'slipped from the felly,V This locking device however, forms no part of the presentdnventioii, as the same is shown, described,- and claimed in my co-pending application Serial Number 620,543, iiled l April 12th, 1911. It will be understood that ingmeans may be i felly is `formed with an inclined surface.V

wliileeI prefer to use these locking devices forholdiiig the rim on the felly, that from certain aspects of the invention, -other lockused.

the"above construction, wherein the and wherein the rim is preferably made of s heetmetal, all of one thickness, there is a liability of the dust and dirt creeping in between the rim and the tapered surface of the felly. In order to prevent dust and dirt from crowding in between these parts, I have formed the rim section 8, with a circumferential rib 29, which projects toward the felly and engages the inclined face thereof adjacent its side edge. Said rib eifectually prevents the dust and dirt from creeping in between the parts, and also serves as a means for rigidly supporting the rim at this side of thevfelly. This rigid support for the rini will hold the same in proper position relative to the plane of .the

wheel and prevent any cramping of the parts. a t

It 1s obvious that ininorchanges in the 'details of construction may bemade with out departing from the spirit of my' invention, as set forth in the appended claims.

Having thus described my invention, I claim:

l. In a vehicle wheel, a riin having a bodyportion divided circumferentially into two parallel sections, said sections being disposed edge to edge, and provided respectively with coperating recesses and projecting lugs which interlock in the direction of rotation, the engaging walls of said recesses and lugs being inclined sol as to prevent an unlocking rotation of one section relative to the other when a tire is placed on said rim and inflated.

2. In a vehiclewheel, a rim having a body portion divided circumferentially into two parallel sections lyingedge 'to edge one of said sections havingfriecesses formed in the edge thereof, and a projecting portion for partially closing the recess, the inner wall of said projecting portion being inclined from the base ofthe projection tcward the outer face of the rim, said other section of the rim having a plurality of correspondingly located projecting lugs each of which is formed with a projecting pon tion adapted to engage in said recesses, the inner wall of said projecting portion being inclined from the base thereof toward the outer face of said rim section, whereby ther lll) 

